According to hoax-slayer.com,there is an email which is traveling from one inbox to another and stating that there is a new Microsoft security update..The email actually starts by giving some advise about how you must secure yourself on the internet from cybercrime,fraud theft,etc,and afterwards states the importance of security updates.

Example:

This email looks legitimate and a link as well has been given where you are directed to fake websites and are forced to download 'viruses' to their machine.Microsoft never send updates through mail,so,we advise every internet user to ignore such mail..The name can also vary in different mail,that is,it may not be named as KB971033 but under some other name..